WL#4443

Added handling of insert/update with triggers.

Cannot prune INSERT/REPLACE when having BEFORE INSERT trigger.

Cannot prune UPDATE(locks)/INSERT ON DUPLICATE KEY UPDATE
when having BEFORE UPDATE trigger.

Author: Mattias Jonsson

mysql-test/include/commit.inc

@@ -750,9 +750,7 @@ call p_verify_status_increment(4, 4, 4, 4);
 --echo #
 --echo # Sic: no table is created.
 create table if not exists t2 (a int) select 6 union select 7;
---echo # Sic: first commits the statement, and then the transaction.
---echo # TODO: verify this before WL#4443 is complete!!!
-#call p_verify_status_increment(2, 0, 2, 0);
+--echo # No table are locked before existing t2 is found, so nothing to commit.
 call p_verify_status_increment(0, 0, 0, 0);
 create table t3 select a from t2;
 call p_verify_status_increment(2, 0, 4, 4);

mysql-test/r/commit_1innodb.result

@@ -827,8 +827,7 @@ SUCCESS
 create table if not exists t2 (a int) select 6 union select 7;
 Warnings:
 Note	1050	Table 't2' already exists
-# Sic: first commits the statement, and then the transaction.
-# TODO: verify this before WL#4443 is complete!!!
+# No table are locked before existing t2 is found, so nothing to commit.
 call p_verify_status_increment(0, 0, 0, 0);
 SUCCESS
 

mysql-test/r/explain.result

@@ -449,6 +449,7 @@ PREPARE s FROM
 'EXPLAIN EXTENDED
 SELECT SUBSTRING(1, (SELECT 1 FROM t1 a1 RIGHT OUTER JOIN t1 ON 0)) AS d
 FROM t1 WHERE 0 > ANY (SELECT @a FROM t1)';
+# After WL#4443 we don't evaluate subqueries during prepare, so no error.
 EXECUTE s;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where